【PV和PVC】kubernetes存储 persistent volume（持久化硬盘）和 persistent volume claim（持久化硬盘请求）

报错：pod has unbound immediate PersistentVolumeClaims (repeated 11 times)

pv没有满足pvc需求

https://www.cnblogs.com/styshoo/p/6731425.html

支持的类型：

https://kubernetes.io/docs/concepts/storage/storage-classes/#aws-ebs